August 11, 2021

How extensive is perceived discrimination among adults with ADHD?

An international team of mental health professionals used a nationally representative sample of English adults over age 16 to explore this question. Of 13,671 households selected, 7,461 were a little more than half participated.

Participants used the Adult ADHD Self-Report Scale (ASRS) Screener to assess symptoms of ADHD on a scale ranging from 0 to 24. Those scoring ≥ 14 were considered as having high levels of ADHD symptoms. They also responded to a computer-assisted self-interview that asked, "Have you been unfairly treated in the last 12 months … because of your mental health," requiring a yes or no answer.

The raw data showed an exponential relationship between levels of ADHD symptoms and mental health discrimination. Respondents scoring0-9 on the ASRS reported negligible discrimination (prevalence of 0.3%).  Among those scoring 10-13, the prevalence was 2.3%, rising to 5.5% of those with scores in the 14-17 range, and 18.8% among those in the 18-24 range.

After adjusting for sociodemographic variables (sex, age, ethnicity, marital status, educational attainment, and income), those with high levels of ADHD symptoms were nearly 10 times more likely to have experienced discrimination than others.  After adjusting for other psychopathology and stressful life events, this increased risk fell to 2.8.

The authors concluded, "This is an important finding given that mental health discrimination has been associated with detrimental consequences in individuals with mental health disorders and therefore might also be a factor in the negative outcomes that have been noted in adults with ADHD/ADHD symptomatology. As ADHD continues to be underdiagnosed and untreated in adults, the results of this study highlight the importance of identifying and treating these individuals and suggest that interventions to inform the public about ADHD may be important for reducing the stigma and discrimination associated with this condition."

Andrew Stickley, Mall Leinsalu, VladislavRuchkin, Hans Oh, Zui Narita, Ai Koyanagi, "Attention-deficit/hyperactivity disorder symptoms and perceived mental health discrimination in adults in t population," European Psychiatry(2019), vol. 56, 91-96.he general

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How Stimulant Use in Childhood ADHD May Impact Brain Connectivity and Symptom Improvement

Previous studies have examined how stimulant medications affect the brain in controlled settings, but less is known about their impact in real-world conditions, where children may not always take their medication consistently or may combine it with other treatments. A new study leverages data from the Adolescent Brain Cognitive Development (ABCD) study to explore how real-world stimulant use impacts brain connectivity and ADHD symptoms over two years.

Changes in Brain Connectivity Researchers used brain imaging data from the ABCD study to examine the functional connectivity—communication between brain areas—of six regions within the striatum, a brain area involved in motivation and movement control. They focused on how stimulant use influenced connectivity between the striatum and other networks involved in executive functioning and visual-motor control.

The study found that stimulant exposure was linked to reduced connectivity between key striatal areas (such as the caudate and putamen) and large brain networks, including the frontoparietal and visual networks. These changes were more pronounced in children taking stimulants compared to those who were not medicated, as well as compared to typically developing children. Importantly, this reduction in connectivity seemed to regulate certain brain networks that are typically altered in children with ADHD.

Symptom Improvement In addition to brain changes, 14% of children taking stimulants experienced a significant reduction in ADHD symptoms over the two-year period. These children showed the strongest connectivity reductions between the right putamen and the visual network, suggesting that stimulant-induced connectivity changes may contribute to improvements in visual attentional control, which is a common challenge for children with ADHD.

Why This Matters This study is one of the first to examine how stimulant use in real-world conditions affects brain networks in children with ADHD over time. The findings suggest that stimulants may help normalize certain connectivity patterns associated with ADHD, particularly in networks related to attention and control. These insights could help clinicians better understand the potential long-term effects of stimulant treatment and guide personalized approaches to ADHD management.

Conclusion Stimulant medications appear to alter striatal-cortical connectivity in children with ADHD, with some changes linked to symptom improvement. This research highlights the potential for stimulant medications to impact brain networks in ways that support attention and control, highlighting the importance of understanding how real-world medication use influences ADHD treatment outcomes.

December 3, 2024

NEWS TUESDAY: Decision-making and ADHD: A Neuroeconomic Perspective

The Neuroeconomic Perspective 

Neuroeconomics combines neuroscience, psychology, and economics to understand how people make decisions. Neuroeconomic studies suggest that brain regions responsible for evaluating risk and reward, including the prefrontal cortex and dopamine pathways, function differently in individuals with ADHD. These insights are crucial for developing more tailored interventions. For example, understanding how ADHD affects reward processing might inform strategies that help individuals resist impulsive choices or increase motivation for delayed rewards.

Understanding Decision-Making in ADHD 

We know that decision-making is a sophisticated process involving various cognitive procedures. It’s not just about choosing between options but also about how to weigh risks, rewards, and potential future outcomes; Attention, motivation, and cognitive control are core to this process. For individuals with ADHD, however, this neural framework is affected by impairments in attention and impulse control, often resulting in “delay discounting”—the tendency to prefer smaller, immediate rewards over larger, delayed ones.

This propensity for impulsive decisions is more than a personal challenge; it has broader societal and economic implications. Previous studies have shown that these tendencies in ADHD can lead to issues in academics, work, finances, and personal relationships, emphasizing the need for targeted support and interventions.

Implications and Future Directions 

This review highlights a need for continued research to bridge the gaps in understanding how ADHD-specific cognitive deficits influence decision-making. Viewing ADHD through a neuroeconomic lens clarifies how cognitive and neural differences affect decision-making, often leading to impulsive choices with economic and social impacts. This perspective opens doors to more effective interventions, improving decision-making for individuals with ADHD. Future policies informed by this approach could enhance support and reduce associated societal costs.

November 26, 2024

Exploring the Link Between ADHD and Student-Teacher Relationships: A Meta-Analysis

Children with ADHD face significant challenges in academic and social settings, often including difficult interactions with teachers. This meta-analysis investigates the quality of student-teacher relationships for children with ADHD, focusing on two key dimensions: closeness and conflict. By synthesizing data from 27 studies encompassing 17,236 participants, the study aims to provide a comprehensive understanding of these dynamics and inform interventions to support both students and teachers.

Methods

A systematic review was conducted using databases such as PsycInfo, ERIC, and ProQuest. Researchers identified 47 effect sizes from 27 studies, examining the association between ADHD symptoms and the quality of student-teacher relationships. Relationship quality was assessed through two primary dimensions:

  1. Closeness – Warmth, positivity, and openness between the student and teacher.
  2. Conflict – Hostility, negativity, and tension in interactions.

Eight moderator analyses were also performed to explore how factors like grade level, gender, ADHD presentation, and comorbid conditions influenced these relationships.

Summary

The findings reveal that children with ADHD symptoms typically experience relationships with teachers characterized by lower levels of closeness and higher levels of conflict. Notably, externalizing behaviors such as hyperactivity and impulsivity are more strongly associated with conflict than inattentive symptoms. Moderator analyses showed that factors like gender, ADHD presentation, and age influence the severity of these relationship dynamics. For instance, younger children and those with hyperactive-impulsive presentations tend to have higher conflict levels with teachers.

Additionally, the research emphasizes the reciprocal nature of these relationships: ADHD symptoms may exacerbate teacher frustration, while negative teacher-student interactions can intensify student behavioral challenges.

Conclusion

This meta-analysis highlights the critical role of student-teacher relationships in the development of children with ADHD. The findings underline the need for targeted interventions that foster positive teacher-student interactions and reduce conflict. Addressing these relationship dynamics could enhance academic performance, social integration, and emotional well-being for children with ADHD. Future research should explore the causal pathways between ADHD symptoms and relationship quality to better inform educational strategies and support systems.

November 25, 2024